Woodworth-Barnes, Esther Littleford and Williams, Alicia Crane, Mayflower Families through Five Generations, Vol 16 Part 1 of 3, John Alden, Boston, Mass.: General Society of Mayflower Descendants, 2002.
Robert Charles Anderson, "John Alden", Great Migration Begins: Immigrants to New England 1620-1633, Vol I, Boston, New England Historic Genealogical Society 1995
Genealogy of Mary Jane Bradway, married Asa Rufus Snow. Compiled by Kearney W. Greenwald and wife Frieda Greenwald, from Research by Bette Bradway, a professional registered Genealogist.
It may be possible to confirm family relationships with Jonathan by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA test-takers in his direct paternal line.
Mitochondrial DNA test-takers in the direct maternal line: